package com.yihu.hos.system.service;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.yihu.hos.common.constants.Constants;
import com.yihu.hos.core.file.FileUtil;
import com.yihu.hos.core.http.HTTPResponse;
import com.yihu.hos.core.http.HttpClientKit;
import com.yihu.hos.services.ServiceFlowEventService;
import com.yihu.hos.system.dao.FlowClassDao;
import com.yihu.hos.system.dao.FlowTempDao;
import com.yihu.hos.system.dao.intf.IFlowClassDao;
import com.yihu.hos.system.dao.intf.IFlowDao;
import com.yihu.hos.system.dao.intf.IFlowTempDao;
import com.yihu.hos.system.model.SystemServiceFlow;
import com.yihu.hos.system.model.SystemServiceFlowClass;
import com.yihu.hos.system.model.SystemServiceFlowTemp;
import com.yihu.hos.system.service.intf.IFlowManage;
import com.yihu.hos.web.framework.model.ActionResult;
import com.yihu.hos.web.framework.model.DictItem;
import com.yihu.hos.web.framework.model.Result;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.multipart.MultipartFile;

import javax.annotation.Resource;
import java.io.File;
import java.io.IOException;
import java.util.*;

/**
 * 系统流程管理业务类
 *
 * @author HZY
 * @vsrsion 1.0
 * Created at 2016/8/19.
 */
@Service("flowManager")
public class FlowManager implements IFlowManage {

    public static final String BEAN_ID = "flowManager";

    @Value("${esb.genCamelUrl}")
    private String genCamelUrl;

    @Resource(name = "flowDao")
    private IFlowDao flowDao;

    @Resource(name = FlowClassDao.BEAN_ID)
    private IFlowClassDao flowClassDao;

    @Resource(name = FlowTempDao.BEAN_ID)
    private IFlowTempDao flowTempDao;
    @Autowired
    ServiceFlowEventService serviceFlowEventService;

    @Override
    public Result getFlowList(Map<String, Object> params) throws Exception {
        return flowDao.getFlowList(params);
    }

    @Override
    public SystemServiceFlow getFlowById(Integer id) throws Exception {
        return flowDao.getEntity(SystemServiceFlow.class, id);
    }

    @Transactional
    public Result addFlow(SystemServiceFlow obj) throws Exception {
        obj.setCreateDate(new Date());
        flowDao.saveEntity(obj);

        if (Constants.CLASS.equals(obj.getFileType())){
            List<SystemServiceFlowClass> flowClassList = obj.getFlowClassArray();
            for (SystemServiceFlowClass flowClass:flowClassList){
                flowClass.setFlowId(obj.getId());
                flowDao.saveEntity(flowClass);
                //发送消息到ＭＱ对列
                sendUpdateMessage(obj.getCode(), flowClass, Constants.FLOW_OP_ADD);
            }
        }else if (Constants.JAVA.equals(obj.getFileType())){
            List<SystemServiceFlowTemp> flowTempList = obj.getFlowTempArray();
            for (SystemServiceFlowTemp flowTemp:flowTempList){
                flowTemp.setFlowId(obj.getId());
                flowDao.saveEntity(flowTemp);
            }
        }

        return Result.success("保存成功");
    }

    @Transactional
    public Result updateFlow(SystemServiceFlow obj) throws Exception {
        SystemServiceFlow flow = flowDao.getEntity(SystemServiceFlow.class, obj.getId());
        flow.setCode(obj.getCode());
        flow.setName(obj.getName());
        flow.setPath(obj.getPath());
        flow.setChart(obj.getChart());
        flow.setValid(obj.getValid());
        flow.setFileType(obj.getFileType());


        if (Constants.JAVA.equals(flow.getFileType())){
            List<SystemServiceFlowTemp> flowTempList = obj.getFlowTempArray();
            boolean succ = flowTempDao.deleteFlowTempByFlowId(obj.getId());
            if (succ){
                for (SystemServiceFlowTemp flowTemp:flowTempList){
                    flowTempDao.saveEntity(flowTemp);
                }
            }
        }else if (Constants.CLASS.equals(flow.getFileType())){
            List<Integer> classIds = flowClassDao.getFlowClassIds(obj.getId());//原flowclass集合
            List<SystemServiceFlowClass> flowClassList = obj.getFlowClassArray();
            SystemServiceFlowClass flowClassRoute = null;
            String oper = "";
            for (SystemServiceFlowClass flowClass:flowClassList){
                if (flowClass.getId()!=null) {
                    classIds.remove(flowClass.getId());
                    flowClassDao.updateEntity(flowClass);
                    if (!flowClass.getType().equals(Constants.FLOW_TYPE_ROUTE)) {
                        sendUpdateMessage(flow.getCode(), flowClass, Constants.FLOW_OP_UPDATE);
                    } else {
                        flowClassRoute = flowClass;
                        oper = Constants.FLOW_OP_UPDATE;
                    }
                }else {
                    if (!flowClass.getType().equals(Constants.FLOW_TYPE_ROUTE)) {
                        flowClassDao.saveEntity(flowClass);
                        sendUpdateMessage(flow.getCode(), flowClass, Constants.FLOW_OP_ADD);
                    } else {
                        flowClassRoute = flowClass;
                        oper = Constants.FLOW_OP_ADD;
                    }
                }
            }
            //删除判断
            if (classIds !=null && classIds.size()>0){
                for (Integer id:classIds){
                    SystemServiceFlowClass flowClass = getFlowClassById(id);
                    flowClassDao.deleteEntity(flowClass);
                    if (!flowClass.getType().equals(Constants.FLOW_TYPE_ROUTE)) {
                        sendUpdateMessage(flow.getCode(), flowClass, Constants.FLOW_OP_DELETE);
                    } else {
                        flowClassRoute = flowClass;
                        flowClassRoute.setIsUpdate("1");
                        oper = Constants.FLOW_OP_DELETE;
                    }
                }
            }
            if (flowClassRoute != null) {
                sendUpdateMessage(flow.getCode(), flowClassRoute, oper);
            }
        }

        flowDao.updateEntity(flow);



        return Result.success("更新成功");
    }

    @Transactional
    public Result deleteFlow(Integer id) throws Exception {
        SystemServiceFlow flow = flowDao.getEntity(SystemServiceFlow.class, id);
        List<SystemServiceFlowClass> flowClassList = flowClassDao.getFlowClassByFlowId(id);
        SystemServiceFlowClass flowClassRoute = null;
        String oper = "";
        for (SystemServiceFlowClass flowClass:flowClassList){
            flowClassDao.deleteEntity(flowClass);
            //发送消息到ＭＱ对列
            if (!flowClass.getType().equals(Constants.FLOW_TYPE_ROUTE)) {
                sendUpdateMessage(flow.getCode(), flowClass, Constants.FLOW_OP_DELETE);
            } else {
                flowClassRoute = flowClass;
                flowClassRoute.setIsUpdate("1");
                oper = Constants.FLOW_OP_DELETE;
            }
        }
        if (flowClassRoute != null) {
            sendUpdateMessage(flow.getCode(), flowClassRoute, oper);
        }
        if (Constants.JAVA.equals(flow.getFileType())){
            flowTempDao.deleteFlowTempByFlowId(id);
        }
        flowDao.deleteEntity(flow);
        return Result.success("删除成功");

    }

        /* ===================================  flowClass 部分================================================*/


    @Override
    public Result getFlowClassList(Map<String, Object> params) throws Exception {
        return null;
    }

    @Override
    public List<SystemServiceFlowClass> getFlowClassByFlowId(Integer flowId) throws Exception {
        return flowClassDao.getFlowClassByFlowId(flowId);
    }

    public SystemServiceFlowClass getFlowClassById(Integer id) throws Exception {
        return flowClassDao.getEntity(SystemServiceFlowClass.class, id);
    }

    @Transactional
    public Result addFlowClass(SystemServiceFlowClass obj) throws Exception {
        flowDao.saveEntity(obj);
        return Result.success("保存成功");
    }

    @Transactional
    public Result updateFlowClass(SystemServiceFlowClass obj) throws Exception {
        return null;
    }

    @Transactional
    public boolean deleteFlowClassByFlowId(Integer flowId) {
        boolean succ =flowClassDao.deleteFlowClassByFlowId(flowId);
        return succ;
    }

    @Override
    public List<SystemServiceFlowTemp> getFlowTempByFlowId(Integer id) throws Exception {
        return flowTempDao.getFlowTempByFlowId(id);
    }

    //TODO
    @Override
    public boolean genFlewByflowTempId(Integer flowTempId) throws Exception {
        SystemServiceFlow flow = getFlowById(flowTempId);
        //生成新的route类

        //添加新processor记录
        return false;
    }


    @Override
    public String uploadFile(MultipartFile file, String baseSavePath) {
        String fileName =  file.getOriginalFilename();
        boolean succ = false;
        try {
            succ = FileUtil.writeFile(baseSavePath + File.separator + fileName, file.getBytes(), "utf-8");
            if (succ){
                return  fileName;
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 发送MQ消息-更新路由
     * @param flowCode  服务流程Code标识
     * @param flowClass
     * @param operate
     */
    public  void sendUpdateMessage(String flowCode,SystemServiceFlowClass flowClass,String operate){
        //发送消息到ＭＱ对列
        if ("1".equals(flowClass.getIsUpdate()) && Constants.FLOW_TYPE_ROUTE.equals(flowClass.getType())) {
            //route
            switch (operate){
                case "add" : serviceFlowEventService.routeDefineAdded(flowCode, flowClass.getPackageName(), flowClass.getClassName(), flowClass.getClassPath()); break;
                case "delete" : serviceFlowEventService.routeDefineDelete(flowCode, flowClass.getPackageName(), flowClass.getClassName()); break;
                case "update" : serviceFlowEventService.routeDefineChanged(flowCode, flowClass.getPackageName(), flowClass.getClassName(), flowClass.getClassPath()); break;
                default : break;
            }
        } else if ("1".equals(flowClass.getIsUpdate()) && Constants.FLOW_TYPE_PROCESSOR.equals(flowClass.getType())) {
            //processor
            switch (operate){
                case "add" : serviceFlowEventService.processorAdded(flowCode, flowClass.getPackageName(), flowClass.getClassName(), flowClass.getClassPath()); break;
                case "delete" : serviceFlowEventService.processorDataDeleted(flowCode, flowClass.getPackageName(), flowClass.getClassName(), flowClass.getClassPath()); break;
                case "update" : serviceFlowEventService.processorDataChanged(flowCode, flowClass.getPackageName(), flowClass.getClassName(), flowClass.getClassPath()); break;
                default : break;
            }
        }
    }

    /**
     * 获取流程列表
     * @param type 流程的文件类型
     * @return
     * @throws Exception
     */
    @Override
    public  ActionResult getFlowList(String type) throws Exception {
        List<SystemServiceFlow> flowList = flowDao.getFlowList(type);
        ActionResult re = new ActionResult();
        if(flowList!=null&&flowList.size()>0)
        {
            List<DictItem> dictList = new ArrayList<>();
            for(SystemServiceFlow item:flowList){
                DictItem dict = new DictItem();
                dict.setCode(item.getId().toString());
                dict.setValue(item.getName());
                dict.setExtend("");
                dictList.add(dict);
            }
            re.setData(dictList);
        }
        return re;
    }


    /**
     * TODO 调用broker接口生成camel相关文件
     * @param flowId
     * @param newCron
     * @throws Exception
     */
    public Integer genCamelFile(Integer flowId, String newCron) throws Exception {
        Long timestamp = System.currentTimeMillis();
        ObjectMapper objectMapper = new ObjectMapper();
        List<SystemServiceFlowTemp> flowClassRouters = flowTempDao.getFlowTemps(flowId, Constants.FLOW_TYPE_ROUTE);
        List<SystemServiceFlowTemp> flowClassProces = flowTempDao.getFlowTemps(flowId, Constants.FLOW_TYPE_PROCESSOR);
        SystemServiceFlow oldFlow = getFlowById(flowId);

        //route模板文件记录是否存在。不存在就返回。
        if (!flowClassRouters.isEmpty()){
            Map<String,String> params = null;
            SystemServiceFlowTemp flowTemp =flowClassRouters.get(0);
            StringBuilder basePath = new StringBuilder();;
            if (flowTemp.getPackageName()!=null){
                String packagePath[] = flowTemp.getPackageName().split("\\.");
                for (int i=0;i<packagePath.length;i++){
                    basePath.append(packagePath[i]).append("/");
                }
            }


            //成功生成文件后，添加flow和flowclass记录
            //生成新流程
            SystemServiceFlow newFlow = new SystemServiceFlow();
            newFlow.setName(oldFlow.getName()+timestamp);
            newFlow.setCode(oldFlow.getCode()+timestamp);
            newFlow.setChart(oldFlow.getChart());
            newFlow.setValid(1);
            newFlow.setCreateDate(new Date());
            newFlow.setFileType(Constants.CLASS);
            flowDao.saveEntity(newFlow);



            //新增processor记录
            for (SystemServiceFlowTemp process:flowClassProces){
//                String newProcessName = process.getClassName()+timestamp;
                String newProcessPath = null;
                StringBuilder proPath =  new StringBuilder( );;
                if (process.getPackageName()!=null){
                    String packagePath[] = process.getPackageName().split("\\.");
                    for (int i=0;i<packagePath.length;i++){
                        proPath.append(packagePath[i]).append("/");
                    }
                }

                params = new HashMap<>();
                params.put("type",Constants.FLOW_TYPE_PROCESSOR);
                params.put("filePath", process.getClassPath());
                params.put("packageName", proPath.toString());
                params.put("newClassName",process.getClassName());//原文件名加当前时间戳
                params.put("oldClassName", process.getClassName());
                params.put("newCron",newCron);
                HTTPResponse response = HttpClientKit.post(genCamelUrl, params);
                if (response.getStatusCode()==200 ){
                    Map<String,Object> body = objectMapper.readValue(response.getBody(),Map.class);
                    boolean succ = (boolean) body.get("successFlg");
                    if (succ){
                        newProcessPath = body.get("message").toString();
                    }else {
                        return null;
                    }
                }
                System.out.println(response.getBody());
                SystemServiceFlowClass processClass = new SystemServiceFlowClass();
                processClass.setPackageName(process.getPackageName());
                processClass.setClassName(process.getClassName());
                processClass.setClassPath(newProcessPath);
                processClass.setFlowId(newFlow.getId());
                processClass.setType(Constants.FLOW_TYPE_PROCESSOR);
                flowClassDao.saveEntity(processClass);
                processClass.setIsUpdate("1");
                sendUpdateMessage(newFlow.getCode(), processClass, Constants.FLOW_OP_ADD);

//                copyProcessor(process.getClassPath(),proPath.toString(),process.getClassName());
            }

            String newClassName = flowTemp.getClassName()+timestamp;
            String newRoutePath =null;
            params = new HashMap<>();
            params.put("type",Constants.FLOW_TYPE_ROUTE);
            params.put("filePath", flowTemp.getClassPath());
            params.put("packageName", basePath.toString());
            params.put("oldClassName", flowTemp.getClassName());
            params.put("newClassName",newClassName);//原文件名加当前时间戳
            params.put("newCron",newCron);
            HTTPResponse response  = HttpClientKit.post(genCamelUrl, params);
            if (response.getStatusCode()==200 ){
                Map<String,Object> body = objectMapper.readValue(response.getBody(),Map.class);
                boolean succ = (boolean) body.get("successFlg");
                if (succ){
                    newRoutePath = body.get("message").toString();
                }else {
                    return null;
                }
            }
            System.out.println(response.getBody());

            SystemServiceFlowClass newFlowClass = new SystemServiceFlowClass();
            newFlowClass.setPackageName(flowTemp.getPackageName());
            newFlowClass.setClassName(newClassName);
            newFlowClass.setClassPath(newRoutePath);
            newFlowClass.setFlowId(newFlow.getId());
            newFlowClass.setType(Constants.FLOW_TYPE_ROUTE);
            flowClassDao.saveEntity(newFlowClass);
            newFlowClass.setIsUpdate("1");
            sendUpdateMessage(newFlow.getCode(), newFlowClass, Constants.FLOW_OP_ADD);

//            genNewRoutefile(flowTemp.getClassPath(),basePath.toString(),flowTemp.getClassName(),newClassName,newCron);
            return newFlow.getId();
        }

        return null;
    }

    /**
     * 修改camel相关文件
     * @param flowId 流程ID
     * @param newCron  新cron
     * @return
     * @throws Exception
     */
    @Override
    public Integer updateCamelFile(Integer flowTempId,Integer flowId, String newCron) throws Exception {
        Long timestamp = System.currentTimeMillis();
        ObjectMapper objectMapper = new ObjectMapper();
        List<SystemServiceFlowTemp> flowTempRouters = flowTempDao.getFlowTemps(flowTempId, Constants.FLOW_TYPE_ROUTE);
        List<SystemServiceFlowClass> flowClassRouters = flowClassDao.getFlowClass(flowId, Constants.FLOW_TYPE_ROUTE);
//        SystemServiceFlow oldFlow = getFlowById(flowId);
        SystemServiceFlow flow = flowDao.getEntity(SystemServiceFlow.class,flowId);
        //route模板文件记录是否存在。不存在就返回。
        if (!flowTempRouters.isEmpty()){
            SystemServiceFlowTemp flowTemp =flowTempRouters.get(0);
            SystemServiceFlowClass flowClass =flowClassRouters.get(0);

            StringBuilder basePath = new StringBuilder();;
            if (flowTemp.getPackageName()!=null){
                String packagePath[] = flowTemp.getPackageName().split("\\.");
                for (int i=0;i<packagePath.length;i++){
                    basePath.append(packagePath[i]).append("/");
                }
            }

            Map<String,String> params  = new HashMap<>();
            params.put("type",Constants.FLOW_TYPE_ROUTE);
            params.put("filePath", flowTemp.getClassPath());
            params.put("packageName", basePath.toString());
            params.put("oldClassName", flowTemp.getClassName());
            params.put("newClassName", flowClass.getClassName());//原文件名加当前时间戳
            params.put("newCron",newCron);
            HTTPResponse response  = HttpClientKit.post(genCamelUrl, params);
            if (response.getStatusCode()==200 ){
                Map<String,Object> body = objectMapper.readValue(response.getBody(),Map.class);
                boolean succ = (boolean) body.get("successFlg");
                if (succ){
                    //route文件生成成功，发送消息
                    flowClass.setIsUpdate("1");
                    sendUpdateMessage(flow.getCode(), flowClass, Constants.FLOW_OP_UPDATE);
                    return flowId;
                }else {
                    return null;
                }
            }else {
                return null;
            }
//            genNewRoutefile(flowTemp.getClassPath(),basePath.toString(),flowTemp.getClassName(),newClassName,newCron);
        }

        return null;
    }



}